U.S. stocks close mixed

U.S. stocks ended mixed on Monday, as investors bought into selected technology shares amid renewed interest in the AI sector.

The Dow Jones Industrial Average fell 80.77 points, or 0.16 percent, to 50,786.01. The S and P 500 added 21.99 points, or 0.3 percent, to 7,405.73. The Nasdaq Composite Index rose 220.23 points, or 0.86 percent, to 25,929.66.

Eight of the 11 primary S and P 500 sectors closed lower, with utilities and real estate leading the declines at 1.92 percent and 1.63 percent, respectively. Technology and energy were the top performers, rising 1.47 percent and 1.14 percent.

The Nasdaq staged a rebound as Nvidia CEO Jensen Huang and other industry leaders suggested the recent tech sell-off could present a buying opportunity in the AI trade. Micron Technology surged almost 10 percent, while Nvidia advanced 1.73 percent.

Apple fell 1.89 percent after the company kicked off its annual Worldwide Developers Conference with a keynote address. Executives unveiled a significantly enhanced version of Siri featuring major artificial intelligence upgrades, along with the new iOS 27 operating system for iPhones.

Meanwhile, oil prices rose following renewed tensions in the Middle East.

West Texas Intermediate crude for July delivery increased by 0.76 U.S. dollars, or 0.84 percent, to settle at 91.30 dollars per barrel on the New York Mercantile Exchange. Brent crude for August delivery rose 1.16 dollars, or 1.25 percent, to settle at 94.25 dollars per barrel on the London ICE Futures Exchange.

In the week ahead, investors will focus on key inflation data releases and the highly anticipated public debut of Elon Musk's SpaceX on Friday. The offering is expected to be one of the largest in Wall Street history and could serve as a significant test of current valuations in the AI and space technology sectors.

U.S. stocks close mixed

China has stepped up efforts to promote the implementation of its multiple key marine ecological protection projects since the beginning of this year, with a balance between marine ecological protection and marine economic development.

In the waters off Weizhou Island in south China's Guangxi Zhuang Autonomous Region, coral colonies cultivated through ecological restoration projects have successfully achieved large-scale natural spawning for the first time this year. The milestone indicates that a complete ecological self-recovery system has been established in the artificially restored marine area.

Across the country, the pace of construction on major ecological projects, including the Blue Bay environmental improvement initiative and coral reef restoration efforts, has accelerated since the beginning of the year.

Meanwhile, pilot projects of the Harmonious and Beautiful Islands program have advanced steadily, with the first batch of 33 islands covered by the program taking shape as models of green landscapes, clean shores, clear waters and abundant marine life.

The improved health of coastal ecosystems is now fueling growth in emerging marine industries.

"From January to April, China's marine economy achieved innovation-driven and high-quality development. Marine passenger traffic and passenger turnover increased by 7.3 percent and 11.1 percent year on year, respectively. Several marine-derived medicines have also gained approval for clinical trials. Next, we will remain committed to protecting our country's blue seas and coastlines, and further strengthen the blue foundation for sustainable use of marine resources," said Meng Qinglei, deputy director of the Department of Marine Strategy, Planning and Economy at the Ministry of Natural Resources.

China achieves balanced development of marine ecology, economy